Development of a smartphone application for the objective detection of attentional deficits in delirium

International Psychogeriatrics
Zoë TiegesAlasdair M J MacLullich

Abstract

Delirium is an acute, severe deterioration in mental functioning. Inattention is the core feature, yet there are few objective methods for assessing attentional deficits in delirium. We previously developed a novel, graded test for objectively detecting inattention in delirium, implemented on a computerized device (Edinburgh Delirium Test Box (EDTB)). Although the EDTB is effective, tests on universally available devices have potential for greater impact. Here we assessed feasibility and validity of the DelApp, a smartphone application based on the EDTB. This was a preliminary case-control study in hospital inpatients (aged 60-96 years) with delirium (N = 50), dementia (N = 52), or no cognitive impairment (N = 54) who performed the DelApp assessment, which comprises an arousal assessment followed by counting of lights presented serially. Delirium was assessed using the Confusion Assessment Method and Delirium Rating Scale-Revised-98 (DRS-R98), and cognition with conventional tests of attention (e.g. digit span) and the short Orientation-Memory-Concentration Test (OMCT). DelApp scores (maximum score = 10) were lower in delirium (scores (median(IQR)): 6 (4-7)) compared to dementia (10 (9-10)) and control groups (10 (10-10), p-val...Continue Reading

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Oct 1, 2015·The American Journal of Geriatric Psychiatry : Official Journal of the American Association for Geriatric Psychiatry·Ann KolanowskiLinda Clare
Jul 8, 2015·International Psychogeriatrics·Kenneth Rockwood
Sep 3, 2016·International Psychogeriatrics·Ravi S Bhat, Kenneth Rockwood
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